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Roaming Data Calculator

Estimate how much mobile data you'll need for your trip.
Estimate how much mobile data your trip needs.
How it works and tips

How it works

Choose your trip length, a daily usage level and the number of devices. The estimate multiplies them: light use is about 200 MB a day (maps and messaging), moderate about 500 MB (social media and browsing) and heavy about 1.5 GB (streaming and video calls).

Tips to use less data

  • Download offline maps, playlists and travel documents on Wi-Fi before you leave.
  • Turn off automatic app updates, photo backups and video autoplay.
  • Compare your operator’s roaming pass with a local SIM or an eSIM data plan.
  • Check whether your plan includes free roaming in the countries you visit (for example, EU plans within the EU).
  • Add a margin of about 20% for unexpected use.

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